LC Technology RS485 TTL 4 ch. Relay Module (Modbus-compatible)
FEATURES
-
Flux SKU:
BHAA100049 -
Length (mm):
180 -
Width (mm):
140 -
Height (mm):
17 -
Brand:
LC Technology -
Main Colour:
Blue -
Country of Manufacture:
China -
MPN:
LC-Modbus-4R-D7 -
UPC:
Does Not Apply -
Number of Items:
1 -
Soldering Points:
UART Pins -
Logic Level Voltage:
3-30V -
Input DC Voltage:
7-24V -
Type:
Electromechanical -
Channels:
4 -
DC Rating:
10A 28V -
AC Rating:
12A 125V
10A 250V -
Actuation Time:
<10ms -
Format:
RS485
5V TTL -
Chipset:
MAX485 -
Address:
1-255 (255 default) -
Baud Rate:
4800/9600/19200 (default 9600bps) -
Noted Onboard Components:
Optocoupler -
Connector Type:
Screw terminals
DESCRIPTION
This module is ideally suited to controlling multiple larger voltages within a project. This is a 4 channel relay module which can be used to activate up to 250V AC and 30V DC. This allows you to build in device control, operating remote lights or triggering systems when the module is supplied with a signal. This signal can come from a range of sources including most standard microcontrollers.
The module is controlled using the common communication protocol Modbus. This can be communicated by either UART or 485 serial.
The pins are suited to standard sockets with a pin pitch of 2.54mm. The relay has a set of screw terminals with labels to indicate the standard state relationship between them.
Please do not hesitate to contact us if you require further information regarding the module's operation.
| Terminal | Description |
|---|---|
| B- | RS485 |
| A+ | RS485 |
| IN | Optocoupler signal input |
| GND | Ground |
| VCC | 7-30V DC |
| NO | Normally open |
| COM | Common |
| NC | Normally connected |
| Commands |
|---|
| Turn on relay X |
| Turn off relay X |
| Turn on all |
| Turn off all |
| Set device address |
| Read device address |
| Read optocoupler status |
| Set baud rate |
| Read baud rate |
| Turn on relay X for Xs |
| Turn off relay X for Xs |
